"The ASTROLab in Mont Megantic is an astronomy centre with a museum and two observatories. It is situated in the first International Dark Sky Reserve, which means there is no light pollution offering unimpeded views of the night sky." About a 2.5 hour drive from Montreal.
47 Of The Last Places On The Planet To Witness The Night Sky As Nature Intended -- Cherry Springs State Park, Pennsylvania -- Widely considered to be one of the nation's best-kept stargazing secrets, Cherry Springs State Park is one of the premier locations for spotting constellations on the east coast.
A spectacular view over Lindisfarne Castle in Northumberland last night during the Preseids meteor shower, as two meteors shear a clear night sky illuminated by the Milky Way
Best Space Pictures: Saturn's Lights, a Rocket's Arc, and Canary Nights
A photo of the Milky Way taken at La Palma, Canaries.
Delicate Arch of Arches National Park and Moab Utah is among this list of 32 Outstanding Photos of Marvelous Places Around the World
For what it's worth, Big Bend has the darkest night skies of any National Park in the lower 48. [More in the link.]
Best hikes: Snowman Trek in Bhutan; Tiger Leaping Gorge, China; Tour du Mont, Switzerland; Pembrokeshire, Wales; Gros Morne in Newfoundland; Bibbulman Track, Australia; Santa Cruz Trek, Peru; Zion National Park; Buckskin Gulch, Utah